16S3: More practice on Sum and Product of roots of a quadratic equation by Gary Ang | Jan 17, 2016 | 16S3, Board-casts | 0 comments [vimeography id="367"] We practiced more questions from Exercise 2A on sum and product of roots. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ